Flight control method and system based on duck wings and airplane

Abstract

The invention relates to the technical field of airplanes, in particular to a flight control method and system based on duck wings and an airplane. The method is applied to the airplane, and the duckwings are telescopically arranged on a front section of an airplane body of the airplane. The method includes the steps that the current flight state of the airplane is recognized; a corresponding control command is generated on the basis of the flight state; and the duck wings are controlled to conduct telescopic motion on the basis of the control command. By the adoption of the technical scheme,the small-sweepback duck wings can be arranged in a low-speed flight state and converted into large-sweepback strake wings in a high-speed flight state, and therefore the low-speed aerodynamic characteristic and the operation stabilization characteristic of a BWB layout are improved under the condition that the cruising aerodynamic characteristic is guaranteed.

Description

technical field

[0001] The present application relates to the technical field of aircraft, in particular to a canard-based flight control method, a flight control system and an aircraft. Background technique

[0002] Economy is an important factor considered in the design of passenger aircraft. Aircraft designers pursue how to use less energy consumption to obtain greater lift and drag, longer range and more on the basis of safety, comfort and environmental protection. passenger. Therefore, in the future, large passenger aircraft will put forward higher requirements for the aerodynamic layout, and if the conventional layout increases the lift-to-drag ratio and increases the flight range, the wing area must be increased, and the loading space can only be increased by increasing the length and cross-section of the fuselage. come to meet. However, the oversized wings and fuselage have brought many challenges to the structure and aerodynamics, and caused problems such as low w...

Examples

Embodiment Construction

[0076] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with specific implementations and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the application. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present application.

[0077] The terms and phrases used in the following description and claims are not limited to the bibliographical meanings, but merely to enable a clear and consistent understanding of the application. Accordingly, it will be understood by those skilled in the art that the description of various embodiments of the present application is provided for the purpose of illustration only, rather than limiting the applicatio...

technical field

[0001] The present application relates to the technical field of aircraft, in particular to a canard-based flight control method, a flight control system and an aircraft. Background technique

[0002] Economy is an important factor considered in the design of passenger aircraft. Aircraft designers pursue how to use less energy consumption to obtain greater lift and drag, longer range and more on the basis of safety, comfort and environmental protection. passenger. Therefore, in the future, large passenger aircraft will put forward higher requirements for the aerodynamic layout, and if the conventional layout increases the lift-to-drag ratio and increases the flight range, the wing area must be increased, and the loading space can only be increased by increasing the length and cross-section of the fuselage. come to meet. However, the oversized wings and fuselage have brought many challenges to the structure and aerodynamics, and caused problems such as low w...

Examples

Embodiment Construction

[0076] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with specific implementations and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the application. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present application.

[0077] The terms and phrases used in the following description and claims are not limited to the bibliographical meanings, but merely to enable a clear and consistent understanding of the application. Accordingly, it will be understood by those skilled in the art that the description of various embodiments of the present application is provided for the purpose of illustration only, rather than limiting the applicatio...

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